JPH049066U - - Google Patents
Info
- Publication number
- JPH049066U JPH049066U JP4901590U JP4901590U JPH049066U JP H049066 U JPH049066 U JP H049066U JP 4901590 U JP4901590 U JP 4901590U JP 4901590 U JP4901590 U JP 4901590U JP H049066 U JPH049066 U JP H049066U
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- developer
- permanent magnet
- magnet member
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000696 magnetic material Substances 0.000 claims 1
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Description
第１図は本考案の実施例を示す要部横断面図、
第２図は従来の現像装置の例を示す要部横断面図
である。
４……現像剤槽、５……スリーブ、６……永久
磁石部材、１４……開口、１５……カバー。
FIG. 1 is a cross-sectional view of main parts showing an embodiment of the present invention;
FIG. 2 is a cross-sectional view of essential parts of an example of a conventional developing device. 4... Developer tank, 5... Sleeve, 6... Permanent magnet member, 14... Opening, 15... Cover.
Claims (1)
ブと、このスリーブ内に同軸的に設けられかつ外
周に軸方向に延びる複数個の磁極を設けてなる永
久磁石部材と、現像剤を収容すると共に前記スリ
ーブと永久磁石部材とを保持する現像剤槽とを備
え、現像剤をスリーブにより現像領域まで搬送し
て現像を行うように構成した現像装置において、 スリーブ上方の現像剤槽にスリーブの長さ寸法
と対向する長さ寸法に形成した開口と、この開口
を覆う回動自在のカバーとを設け、開口を介して
初動現像剤を永久磁石部材の磁気吸引力の作用す
る範囲に供給するように構成したことを特徴とす
る現像装置。[Claims for Utility Model Registration] A permanent magnet member comprising: a hollow cylindrical sleeve made of a non-magnetic material; and a plurality of magnetic poles coaxially disposed within the sleeve and extending in the axial direction on the outer periphery; In a developing device that includes a developer tank that accommodates developer and holds the sleeve and a permanent magnet member, and is configured to carry the developer to a development area by the sleeve and perform development, the developer above the sleeve. The tank is provided with an opening formed in a length dimension opposite to the length dimension of the sleeve, and a rotatable cover that covers this opening, and the initial developer is transferred through the opening by the magnetic attraction force of the permanent magnet member. A developing device characterized in that it is configured to supply to a range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990049015U JP2549059Y2 (en) | 1990-05-10 | 1990-05-10 | Developing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990049015U JP2549059Y2 (en) | 1990-05-10 | 1990-05-10 | Developing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH049066U true JPH049066U (en) | 1992-01-27 |
| JP2549059Y2 JP2549059Y2 (en) | 1997-09-24 |
Family
ID=31566341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990049015U Expired - Lifetime JP2549059Y2 (en) | 1990-05-10 | 1990-05-10 | Developing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2549059Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5225643A (en) * | 1975-08-20 | 1977-02-25 | Sharp Corp | Development means |
| JPS5811767U (en) * | 1981-07-15 | 1983-01-25 | 京セラミタ株式会社 | Magnetic brush developing device equipped with toner particle supply mechanism |
| JPS6095572A (en) * | 1983-10-31 | 1985-05-28 | Canon Inc | Dry type developing device |
-
1990
- 1990-05-10 JP JP1990049015U patent/JP2549059Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5225643A (en) * | 1975-08-20 | 1977-02-25 | Sharp Corp | Development means |
| JPS5811767U (en) * | 1981-07-15 | 1983-01-25 | 京セラミタ株式会社 | Magnetic brush developing device equipped with toner particle supply mechanism |
| JPS6095572A (en) * | 1983-10-31 | 1985-05-28 | Canon Inc | Dry type developing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2549059Y2 (en) | 1997-09-24 |